Mareth weather in January

In January, Mareth sees average daytime highs of 16°C and overnight lows near 8°C, with 16 mm of rain across 3.1 wet days and about 10 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 64% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Mareth's 9th-clearest and 2nd-windiest month. For the whole year in context, see Mareth's year-round climate.

Daytime high
16°
12th warmest
Overnight low
1st coldest
Rainfall
16 mm
3.1 wet days
Daylight
10 hours
7:28 AM – 5:28 PM
Cloud cover
33%
9th clearest
Wind
15 km/h
2nd windiest
Solar energy
3.35 kWh/m²
Travel score
6.3
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical January day in Mareth reaches about 16°C in the afternoon and slips back to 8°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 20°C. Set against its neighbours, January runs about 1°C cooler than December and about 2°C cooler than February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1168
2168
3168
4168
5168
6168
7168
8168
9168
10168
11168
12168
13168
14168
15168
16168
17168
18168
19168
20168
21168
22168
23168
24168
25168
26168
27168
28168
29168
30178
31178

How January really feels in Mareth

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mareth weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 163.1106.3
Feb18° / 142.710.87.1
Mar21° / 11°182.611.78.0
Apr24° / 14°112.112.88.7
May28° / 18°51.313.77.6
Jun32° / 21°10.314.25.3
Jul35° / 24°00.1143.6
Aug35° / 25°20.513.23.4
Sep32° / 23°172.612.25.1
Oct28° / 19°21311.27.4
Nov22° / 13°14310.38.2
Dec17° / 183.19.87.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 24%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
28020
37921
47921
57921
67822
77822
87723
97723
107624
117525
127426
137426
147426
157327
167426
177426
187327
197327
207327
217525
227525
237525
247525
257723
267723
277723
287822
297822
307822
317822

Chance of precipitation in January

Any precipitation

Mareth gets around 16 mm of rain over 3.1 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 12% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
19
29
38
48
58
68
78
88
99
109
1110
1210
1311
1411
1512
1612
1712
1812
1912
2012
2112
2212
2312
2412
2512
2611
2711
2811
2911
3011
3110

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 15 km/h in January.

Across January, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 48 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:28 AM to 7:22 AM, and sunset from 5:16 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:285:16
29.87:285:17
39.87:285:18
49.87:285:18
59.87:295:19
69.97:295:20
79.97:295:21
89.97:295:21
99.97:295:22
109.97:295:23
119.97:295:24
129.97:295:25
139.97:295:25
1410.07:295:26
1510.07:285:27
1610.07:285:28
1710.07:285:29
1810.07:285:30
1910.17:285:31
2010.17:275:32
2110.17:275:33
2210.17:275:33
2310.17:265:34
2410.27:265:35
2510.27:255:36
2610.27:255:37
2710.27:255:38
2810.37:245:39
2910.37:245:40
3010.37:235:41
3110.37:225:42

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.35 kWh/m².

For context, solar energy here swings from a low near 2.95 kWh/m² to a high of 7.75 kWh/m² in July across the year — January's 3.35 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.3Moderate
143.3Moderate
153.3Moderate
163.3Moderate
173.3Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.8Moderate
Planning a trip in January

Hazard calendar for Mareth

In seasonPeak

None of Mareth's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Mareth sees seasonal dust haze (April–June), heaviest in April.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Mareth?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.3
Sightseeing
8th-best month of the year
1.0
Beach & pool
12th-best month of the year

January is a reasonable time to visit Mareth for sightseeing.

What to pack for Mareth in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Mareth sees daytime highs around 16°C and nights near 8°C. Worth packing: a warm layer. About 3 days see rain.

a warm layer

Sea temperature near Mareth in January

The nearest coast averages about 15°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 km away) is warmest in August at about 29°C and coldest in February near 14°C.

It's comfortable for a long swim from May 8 to Nov 26 — about 6.7 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar15Cool
Apr18Cool
May21Refreshing
Jun24Warm
Jul27Warm
Aug29Tropical
Sep28Warm
Oct25Warm
Nov22Refreshing
Dec17Cool

UV index in Mareth in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mareth peaks around June 21 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 21UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr6High
May7High
Jun11Extreme
Jul10Very high
Aug9Very high
Sep8Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Mareth in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Mareth is worst in January — around 40 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (July, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateJan 1739 µg/m³Jul 2212 µg/m³
PM2.5 (µg/m³)Level
Jan40Poor
Feb33Moderate
Mar34Moderate
Apr29Moderate
May21Moderate
Jun16Moderate
Jul12Good
Aug12Moderate
Sep16Moderate
Oct22Moderate
Nov30Moderate
Dec32Moderate
Location & terrain

Where is Mareth?

Mareth sits at 33.6°N, 10.3°E, 51 m above sea level, in Tunisia. The nearest listed city is Teboulbou, 30 km away.

AjimMétouia

Topography around Mareth

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mareth.

Within 3 km, the terrain around Mareth has only modest variations in elevation — a maximum elevation change of 37 m around an average of 50 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 355 m; within 80 km, large variations in elevation — a maximum elevation change of 684 m.

The land around Mareth is covered by cropland (47%) within 3 km, bare terrain (34%) and grassland (31%) within 16 km, and bare terrain (54%) and water (28%) within 80 km.

3 km
37 m
16 km
355 m
80 km
684 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Teboulbou 30 km · Matmata 30 km · Gabes 34 km · Chenini Nahal 35 km · Medenine 36 km · Rhennouch 41 km · Ajim 45 km · Métouia 46 km

Tunisia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$4,657
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
65%
of population, 2024
Homicide rate
4.7
per 100k, 2020
Road deaths
16.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 498
Religion
Muslim 99%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mareth (33.6179°, 10.2854°, elevation 51 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).